Port 2 connection?

[RockBottom]

I recently installed a mfd12. I have the gps 320b connected to data 1 and a 6/10 sounder connected to the network. I am trying to hook up my ComNav 1420 auto pilot. The auto pilot has two wires to connect to the Mfd12. I used the red wire and the brown wire from Data2 for port 2. I connected the red to the return and the brown to the signal. Ran the install wizard and it didn’t recognize the autopilot. Anything I’m missing?

 

[Johnny Electron]

You are taking one wire from the Data 2 output and one wire from the Data 2 input. That isn't correct. To drive an autopilot you should send over the two output wires from the Display. If using data 2 it would be Red (+) and Red/White (-).

 

[RockBottom]

Thanks Johnny. One more question...Does it matter which wire goes to the signal wire and which one goes to the return wire of the autopilot? Thanks

 

[Johnny Electron]

(+) out of the NavNet should go to (+) input of the pilot. (-) neg out of the NavNet goes to the (-) neg IN on the pilot.

 

[RockBottom]

:jump Thanks For all your help.